Advertisements
Advertisements
प्रश्न
What is meant by the term ‘Atmospheric Pressure’?
Advertisements
उत्तर
Atmospheric Pressure refers to the force per unit area exerted against a surface by the weight of the air above that surface. The pressure is expressed in millibars (mb) and measured with a mercury barometer. The average atmospheric pressure at sea level is 1013.25 mb or 760 mm (the) height of the column of mercury in a barometer at sea level). Atmospheric Pressure decreases with height.
APPEARS IN
संबंधित प्रश्न
You want to buy a house. Would you like to buy a house having windows but no ventilators? Explain your answer.
Write the numerical value of the atmospheric pressure on the earth surface in pascal.
Explain the following :
Water does not run out of a dropper unless its rubber bulb is pressed .
State two uses of a barometer.
Give two reasons why water is not a suitable barometric liquid.
What do the following indicate in a barometer regarding weather : Gradual rise in the mercury level?
Distinguish between the following:
Isobars and Isotherms
What is an aneroid barometer?
Draw a neat and labeled diagram to explain its construction and working.
Define Low pressure.
